I replaced the hydraulic lift pump unit (part # M-3519-0106 in our 2005 27 ft. Towlite earlier this month and found a new pump identical to the one in ours from an Ebay merchant in Michigan. It was a simple R & I. I was looking for a new hydraulic actuator also but could not find one like the ones Hi-Lo uses. I got ours rebuilt and they said the cylinder interior was in good shape still. The actuator would be hard to find. You would probably have to have a machine shop cut off the piston rod to length and tap a 3/4" hole about 2" in the end of the rod to attach the pulley bracket plate to. Appliances are same as other RV appliances and shouldn't be hard to find. Suspension parts are common trailer parts also. Interior wall paneling and cabinetry would not be available since the Hi-Lo plant and support people are out of business now. Lift cables would have to be made up by a cable supply or hydraulic shop. Water leaks are a common problem with these (actually all RVs have water leak problems). We have had 3 Hi-Los over the years and have fixed many water leaks. One main one is the screws holding the trim pieces along the roof line. They will wick water into the walls and it is a good idea to remove all of those screws and coat them with a sealant (I like lap sealant non leveling). Some people completely remove the screws and trim pieces and put flat head screws and Eterna Bond tape over the roof joint. It is a good idea to put Eterna Bond tape over the joint between the end caps of the upper section also. Windows need to be sealed also. Removing them is the best way to do this. You can find used Hi-Los at pretty reasonable prices and with a little work on them you can probably get a lot of use out of one. They're kind of a fun camper to have.
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